wireguard-openbsd/sys/arch/arm/include/atomic.h, branch jd/queueboosts

Use unsigned long instead of uint32_t, which is the appropriate integer

2017-07-31T11:52:49Z

type for storing pointers in our universe. Avoids an implicit dependence on . ok tom@

Make atomic.h ready to be included in userland.

2017-05-12T08:53:46Z

- keep setbits/clearbits and virtio barriers inside _KERNEL - prefix def_atomic_xxx macros with underscores

unifdef CPU_ARMv7 and ARM_ARCH_7

2017-01-06T00:06:02Z

ok kettenis@ patrick@

Implement membar(9) for armv5. As there are no barrier instructions in

2016-05-16T13:18:51Z

armv5 this is just a "memory" clobber hint to the compiler. ok kettenis@

Implement atomic operations using the atomic instructions available

2016-04-25T08:00:43Z

since ARMv6K. As we also support ARMs that are older than that, guard the new atomic operations with an ifdef specifically for ARMv7. ok jsg@

Switch from PSR_X_bit and X32_bit PSR macro names to just PSR_X.

2016-01-31T00:14:50Z

This matches FreeBSD and makes things a bit more consistent. Discussed with Patrick.

Explicitely include here instead of expecting previously

2015-09-12T16:12:50Z

included files to bring it in.

Implement membar_* for armv7 with the dmb instruction. The previous

2015-06-29T04:16:32Z

sys/sys/atomic.h default of __sync_synchronize() resulted in "dmb sy", a full system barrier for all memory operations. With this change membar_producer() switches to "dmb st" (StoreStore). earlier version ok rapha@

implement the atomic_foo things on arm.

2014-11-14T09:56:06Z

testing and ok jsg@

It's been a quarter century: we can assume volatile is present with that name.

2014-03-29T18:09:28Z

ok dlg@ mpi@ deraadt@